linux/Documentation
Masahiro Yamada 69bc8d386a kbuild: generate Module.symvers only when vmlinux exists
The external module build shows the following warning if Module.symvers
is missing in the kernel tree.

  WARNING: Symbol version dump "Module.symvers" is missing.
           Modules may not have dependencies or modversions.

I think this is an important heads-up because the resulting modules may
not work as expected. This happens when you did not build the entire
kernel tree, for example, you might have prepared the minimal setups
for external modules by 'make defconfig && make modules_preapre'.

A problem is that 'make modules' creates Module.symvers even without
vmlinux. In this case, that warning is suppressed since Module.symvers
already exists in spite of its incomplete content.

The incomplete (i.e. invalid) Module.symvers should not be created.

This commit changes the second pass of modpost to dump symbols into
modules-only.symvers. The final Module.symvers is created by
concatenating vmlinux.symvers and modules-only.symvers if both exist.

Module.symvers is supposed to collect symbols from both vmlinux and
modules. It might be a bit confusing, and I am not quite sure if it
is an official interface, but presumably it is difficult to rename it
because some tools (e.g. kmod) parse it.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-04-25 05:17:02 +09:00
..
ABI A handful of late-arriving documentation fixes, nothing all that notable. 2021-02-26 14:21:18 -08:00
accounting
admin-guide More new code for 5.12: 2021-02-28 11:45:25 -08:00
arm
arm64
block block/bfq: update comments and default value in docs for fifo_expire 2021-03-02 11:25:38 -07:00
bpf
cdrom
core-api Merge branch 'akpm' (patches from Andrew) 2021-02-24 16:20:38 -08:00
cpu-freq
crypto
dev-tools kasan: clarify that only first bug is reported in HW_TAGS 2021-02-26 09:41:03 -08:00
devicetree kbuild: replace sed with $(subst ) or $(patsubst ) 2021-04-25 05:14:01 +09:00
doc-guide docs: Document cross-referencing using relative path 2021-02-04 16:24:12 -07:00
driver-api Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
fault-injection
fb
features Documentation: features: refresh feature list 2021-02-25 11:25:57 -07:00
filesystems Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
firmware_class
firmware-guide Merge branch 'acpi-messages' 2021-02-15 17:04:53 +01:00
fpga
gpu drm: Use USB controller's DMA mask when importing dmabufs 2021-03-11 11:11:33 +01:00
hid
hwmon hwmon: add Texas Instruments TPS23861 driver 2021-02-12 07:02:55 -08:00
i2c i2c: testunit: add support for block process calls 2021-02-12 11:11:04 +01:00
ia64
ide
iio
infiniband
input
isdn
kbuild docs: kbuild: Fix a typo in the file Kconfig.recursion-issue-02 2021-04-25 05:13:56 +09:00
kernel-hacking docs: kernel-hacking: be more civil 2021-02-11 10:00:40 -07:00
leds
litmus-tests
livepatch
locking
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking docs: networking: drop special stable handling 2021-03-03 08:49:08 -08:00
nios2
nvdimm
openrisc
parisc
PCI Documentation: PCI: Add PCI endpoint NTB function user guide 2021-02-23 14:15:45 -06:00
pcmcia
power It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
powerpc docs: powerpc: Fix tables in syscall64-abi.rst 2021-02-25 13:04:24 -07:00
process Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-03-09 17:15:56 -08:00
RCU It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
riscv
s390
scheduler It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
scsi SCSI misc on 20210219 2021-02-22 10:24:58 -08:00
security Keyrings miscellany 2021-02-23 16:09:23 -08:00
sh
sound ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
sparc
sphinx docs: Enable usage of relative paths to docs on automarkup 2021-02-04 16:23:43 -07:00
sphinx-static
spi
staging
target
timers
trace Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
translations A handful of late-arriving documentation fixes, nothing all that notable. 2021-02-26 14:21:18 -08:00
usb
userspace-api Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
virt More fixes for ARM and x86. 2021-03-14 12:35:02 -07:00
vm mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect 2021-02-24 13:38:27 -08:00
w1
watchdog
x86
xtensa
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py Fix unaesthetic indentation 2021-02-22 14:35:04 -07:00
COPYING-logo
docutils.conf
dontdiff kbuild: generate Module.symvers only when vmlinux exists 2021-04-25 05:17:02 +09:00
index.rst
Kconfig
logo.gif
Makefile kbuild: remove PYTHON variable 2021-02-01 10:37:19 +09:00
memory-barriers.txt
SubmittingPatches
watch_queue.rst